Curated OER
Triangles and Circles
In this colors and shapes worksheet, learners recognize the circles and triangles and the colors yellow and orange. Students trace the circles and color them yellow and trace the triangles and color them orange.
Curated OER
Incenter of a Triangle
Tenth graders find the incenter of a triangle. In this geometry instructional activity, 10th graders define the way to create an incenter with an angle bisector. They differentiate between incenter and incircle.
Curated OER
Triangles with Collinear Circumcenters
Students identify the circumcenter of a triangle. In this geometry lesson, students construct a perpendicular bisector using a straight edge and a compass. They differentiate between triangles and collinear points.